In the book "artemis" by andy weir, who is the real owner of sanchez aluminum?

a) the kenya space corporation

b) o palácio

c) russia

d) trond landvik

Sanchez Aluminum is a front for O Palácio, Brazil's largest and most powerful organized crime syndicate, so the answer is

B) O Palácio

P.S. a front is a person, group, or thing used to mask the identity or true character or activity of the actual controlling agent.

fire

explanation:

c. in order of atomic number